36 



YOSEMITE NATURE NOTES 



5 6 7 8 



From UcMinn aiiJ Maiiio: Pacific CoasI Trees. Courtesy of the Uniiersily of California Prea 



Parts, kinds, arrangements, and venation of leaves 



1. Stem with simple alternate leaf, uith iictteJ leiiation; b, hud; bl, blade; p, petiole; s, stipules. 2. Stem 

 with opposite, palmately veined and lohed leaies. 3. Pinnately compound leaf; 1, leaflet; p, petiole; 

 pt, petiolule; r, rachis. 4. palmately compound leaf. 5. Simple leaf uith parallel lenation. 6. Fascicled 

 leaves; s, sheath. 7. Stem uith whorled leaves. 8. Strainht-veined leaf. 



12 3 4 5 6 7 



from McMinn anj Maino: Pacific Coait Trrti. Courtesy of the University of California Press 



Margins of Leaves 



1. r.ntire. 2. Serrate. 3. Dentate. 4. Crenate. S. Sintm/e. 6. Pinnately lobed. J.Palmalely lohed. 



